Water web is a distinctive look in turquoise. At higher grades it is rare and very desirable. In this video Mike explains the look and we see examplea from Kingman and Candelaria.

Challenges with XRF Data Neil Ray. West Texas Analytical Laboratory. XRF testing has significantly grown as an option to test unknown turquoise, and the algorithm is constantly improving with growing accuracy as more reference samples are constantly added to the dataset.  As much as the lab would like it to be, it is important to stress that the algorithm is not 100% accurate and only a probability of origin is returned.  Considering the number of mines and varieties of turqu

Scientific testing of turquoise by XRF analyses can be a bit dense for the lay person. Neil Ray unwinds the complexity in this report. Interpreting a P3M Turquoise Report and Frequently asked Questions Neil Ray, West Texas Analytical Laboratory P3M is software that was developed over the course of 10 years of research in geochemistry of various rock types. The software calculates mineralogy based on whole rock composition; analogous to the CIPW norm used in igneous rocks. An 

On the Many Variations of Bisbee Turquoise and its Identification – Geochemical Indicators and Comparisons to Kingman Turquoise Neil Ray, West Texas Analytical Laboratory, Geochemist & Mineralogist Bisbee turquoise has always been considered an uncommon turquoise with a rich mining history; the pit was once considered a large-scale copper mine owned by the Phelps Dodge Corporation producing substantial amounts of recoverable copper.  Consequently, turquoise was deemed a waste